Sidney "Gaff" Levine LMD

A creature of espionage shadows, Sidney "Gaff" Levine LMD stepped onto the Marvel stage in 1988's Nick Fury vs. S.H.I.E.L.D. #1 — a landmark Copper Age limited series by Bob Harras and Paul Neary that put the whole spy-fi world of S.H.I.E.L.D. under a paranoid microscope. The "LMD" designation says it all: this is a Life Model Decoy, one of Marvel's eeriest concepts, and Gaff exists at the heart of a story where trust and identity are the most dangerous weapons of all. Sharing those tense pages with legends like Dum Dum Dugan, Countess Valentina Allegra de Fontaine, and Gabe Jones, Gaff occupies a genuinely unsettling corner of the Marvel spy universe. Rare in the catalog with only a handful of appearances, this is exactly the kind of deep-cut character that rewards collectors who love their espionage intrigue with a side of existential dread.